Kauai County, HI Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Kauai County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 73. East wind 7 to 12 mph.
County Weather Overview
This county weather page brings together forecast coverage for Kauai County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 14 of 14 mapped cities in Kauai County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 19 to Oct 25, 2026
- Latest sync
- Oct 19, 2026 3:22 AM HST
- Forecast office
- HFO
- Source
- NOAA / NWS
Daily Outlook
This Week in Kauai County
Monday looks like the warmest upcoming period in Kauai County at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Monday at about 6 to 14 mph E.
The forecast from Oct 19 through Oct 25 stays mostly dry.
Forecast Details
- Last updated
- Oct 19, 2026 3:22 AM HST
- Coverage
- 7 days
- Time zone
- Pacific/Honolulu
- Forecast office
- HFO
- Radar station
- PHKI
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 89, with temperatures falling to around 84 in the afternoon. East wind 6 to 14 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 73. East northeast wind around 8 mph.
Mostly sunny, with a high near 89. East wind around 10 mph.
Mostly clear, with a low around 73. East northeast wind 7 to 10 mph.
Sunny, with a high near 89. East northeast wind around 7 mph.
Mostly clear, with a low around 72. East northeast wind 3 to 7 mph.
Mostly sunny, with a high near 88. East northeast wind around 3 mph.
Partly cloudy, with a low around 73. Northeast wind around 5 mph.
Partly sunny, with a high near 89. Northeast wind around 5 mph.
Partly cloudy, with a low around 73. East northeast wind around 6 mph.
Mostly sunny, with a high near 89. Northeast wind 3 to 7 mph.
Mostly cloudy, with a low around 73. Northeast wind around 7 mph.
Mostly cloudy, with a high near 89. East northeast wind around 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 19
|
Mostly Clear
|
73°F |
7 to 12 mph
E
|
|
Monday
Oct 19
|
Mostly Sunny
|
89°F |
6 to 14 mph
E
|
|
Monday Night
Oct 19
|
Mostly Clear
|
73°F |
8 mph
ENE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
89°F |
10 mph
E
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
73°F |
7 to 10 mph
ENE
|
|
Wednesday
Oct 21
|
Sunny
|
89°F |
7 mph
ENE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
72°F |
3 to 7 mph
ENE
|
|
Thursday
Oct 22
|
Mostly Sunny
|
88°F |
3 mph
ENE
|
|
Thursday Night
Oct 22
|
Partly Cloudy
|
73°F |
5 mph
NE
|
|
Friday
Oct 23
|
Partly Sunny
|
89°F |
5 mph
NE
|
|
Friday Night
Oct 23
|
Partly Cloudy
|
73°F |
6 mph
ENE
|
|
Saturday
Oct 24
|
Mostly Sunny
|
89°F |
3 to 7 mph
NE
|
|
Saturday Night
Oct 24
|
Mostly Cloudy
|
73°F |
7 mph
NE
|
|
Sunday
Oct 25
|
Mostly Cloudy
|
89°F |
8 mph
ENE
|
Major City Forecasts
Live forecast snapshots for major cities across Kauai County.
Coverage
Forecast coverage currently spans 14 of 14 mapped cities in Kauai County.
Largest mapped city population in this region: 10,699.
